<!DOCTYPE html>
<html>
<body>
    <h1>JavaScript 函数</h1>
    <p>在此示例中，person 的 fulllName 方法在 person1 上<b>应用</b>：</p>
    <p id="demo"></p>
    <script>
        var person = {
            fullName: function (city, country) {
                return this.firstName + " " + this.lastName + "," + city + "," + country;
            }
        }
        var person1 = {
            firstName: "Bill",
            lastName: "Gates"
        }
        var x = person.fullName.apply(person1, ["Seatle", "USA"]);
        document.getElementById("demo").innerHTML = x;
    </script>
</body>
</html>